As the moon of Zil Hajj was not sighted on August 21st, Kingdom of Saudi Arabia's officials and Islamic Crescents announced in a statement that Eid-ul-Adha will be on September 1st of 2017 that is on Friday.

Supreme Court of Saudi Arabia said, 'Zul Hijjah' lunar month first day will be on Aug 23rd, 2017, As 'Zul Qaadah' lunar month last day will be Tuesday ie, Aug 22nd of 2017.

Arafat day will be on August 31st, On this day Hajj pilgrims will stand on the mount of Arafa, Which is at outskirts of Makkah. Eid celebration will be on September 1st, 2017

Eid-Al-Adha will be on September 1, National Day of Saudi Arabia is about to come on September 23 ie,. Saturday. You can also refer article "Public Holiday in Saudi Arabia 2017".